For the price you pay - and considering this is Las Vegas and not Seoul or Los Angeles - Jun's is outstanding Korean fare. The #1 will get you a little bit of everything, though the Kalbi is what stands out, and the kimchi jiggae has replaced chicken noodle soup as my go-to for when I'm under the weather; also try the pajeon (Korean seafood pancake). The staff is also quite friendly.
I've been going here both before and after I lived in Korea, and I have to say that they've brought with them my favorite part of the peninsula: the food.